SlapMac
Slap your MacBook. It screams back.
That's it. That's the app.
macOS 14.6+ (Sonoma) · M1PRO+ MacBook required
Fresh ways to slap things.
A Claude Code mod, a whip, and your own sounds.
Slap Claude.
It stops.
slapmod is a free Claude Code mod. One slap stops Claude mid-turn, two quick slaps send it back to rethink. With SlapMac running, your pack does the yelling.
Crack
the whip.
Five real whip cracks, and a whip that lashes across your screen with every slap. Slap harder, crack bigger.
Your voice.
Your slaps.
Record up to 10 clips with your Mac's mic, or import any audio file. Each slap plays one at random: your cat, your boss, your best impression. They work as your anti-theft alarm, too.
Actually, there's a lot more than slaps.
Useful, unhinged utilities for your Mac.
No more nausea, with style.
A calmer journey, right at the edges of your screen.
Four looks. Real motion. Your kind of subtle.
Fancy folding animation for your Mac.
Your desktop folds with the lid.
An unnecessarily satisfying goodbye.
Open-space safety for your Mac
Someone moves your Mac. An alarm screams.
And you get a selfie of the thief 🥷.
Same chaos.
Pocket-sized.
Meet SlapMac Go.
Your iPhone has feelings now, too.
SlapMac went viral. Like, everywhere.
Featured on 500+ US radio stations, viral on Instagram, TikTok, and X. Millions of impressions. Thousands of slappers. And a lot of very confused MacBooks.
Your laptop has feelings now
SlapMac hides in your menu bar. Slap your MacBook and it screams back, with volume proportional to your force.
USB Moaner
Enable USB Moaner mode and your MacBook reacts every time you plug or unplug a USB device. Same voice packs but no slapping required.
Nine moods of protest
150+ sound clips across 9 voice packs. Your open-plan office will have questions.
💋 Woman
Your MacBook gets... expressive. Use headphones.
Dial in your slap
Also, it does these things
Menu bar only
No dock icon. Lurks silently.
Volume scales with force
Gentle tap? Whisper. Full slap? Full volume.
Adjustable sensitivity
From "earthquake detector" to "needs a running start".
Cooldown timer
Prevents meltdowns during rapid slaps.
USB Moaner
Plug or unplug a USB device. It moans. You're welcome.
Launch at login
Always ready. Always listening.
Slap counter
Tracks your lifetime slaps in the menu bar. High score pending.
Onboarding
A polite welcome before the chaos begins.
🛣️Changelog
Whip, Custom Sounds & Claude Code 🪢
v1.6.0 · currentA Whip soundpack with a whip that lashes across your screen, Custom Sounds you record or import, and slapmod: slap your Mac to stop Claude Code mid-turn. See what's new →
Motion Cues 🫧
v1.5.0Cues at the edges of your screen move with your MacBook, driven by its accelerometer. Choose Lava, Ice, Beacon or Simple, and fine-tune the look and sensitivity. Play with the demo →
Lid Effects 🪭
v1.4.5Your desktop tilts, blurs and settles as the lid comes down, driven by the real hinge sensor. Drift, Dusk and Mist. Play with the demo →
Anti-Theft Mode 🚨
v1.4.0Motion-triggered alarm with Selfie of Shame, auto-arm on screen lock, Touch ID to disarm. See the full breakdown →
Past releases
Wildly overengineered slap detection
Five concurrent signal processing algorithms vote on whether you actually slapped your laptop. Democracy, but for physical abuse.
High-Pass Filter
Strips out gravity so we only see impacts
STA/LTA Ratio
Compares short-term vs long-term averages at 3 timescales
CUSUM
Detects sudden shifts in acceleration
Kurtosis
4th statistical moment — finds sharp spikes
Peak/MAD
Median Absolute Deviation outlier detection
Architecture
Inspired by taigrr/spank (Go). Rebuilt in Swift.
Lid angle detection uses LidAngleSensor by Sam Gold.
MenuBarExtra (SwiftUI)
└─ SlapController
├─ AccelerometerReader ← IOKit HID, ~12.5Hz
├─ LidAngleSensor ← IOKit, lid angle detection
├─ SlapDetector ← 5 algorithms vote
├─ USBWatcher ← IOKit USB events
├─ AudioPlayer ← AVFoundation
└─ SettingsStore ← UserDefaults👋 $12.99. Less than a burrito. More fun than your therapist.
Requires an M1PRO+ MacBook and a willingness to hit expensive things.